Razor Electric (not anymore) 49cc 2 stroke Chopper

[oscaryu1]

Meh, might as well post it up

With the help of Tyler resolved low idle and air leak issue.

Modifications:

Lightly ported/polished exhaust
Custom straight pipe (Definitely not for low-end power)
Adjustable 2 pad racing clutch
Stuffer Full Circle rankshaft
Ported/polished case and case transfers
Walbro WT-603 Clone Carburetor
Rockit 10 Degrees Advancement Key
Fibreglass Reeds
CNC Lightened and Balanced Flywheel
6/54 Gearing for Top End

 

[Doc Sprocket]

Nice job, looks pretty cool. What'd you use for the fuel tank?

 

[freakboy]

Looks like a paintball co2 tank.

 

[brendonv]

dang that thing is nice.

 

[Kaptain Krunch]

Is that CO2 tank really your gas tank? how do you fill it...easily...

 

[WI_Chopper]

looks like the brass top can be screwed off with a wrench, then use a funnel? hard to get there with the handlebars

 

[kibble]

Pretty nice!

 

[oscaryu1]

otyq.

Yeah, I drilled out the CO2 tank. Works well, needs a better support though.

And needs a idler sprocket... so much vibration when acceleration the chain just spits itself off

(Chain' tight, but vibration causes the chain to shake literally 1-2" side to side)

 

[jr dragster T]

And needs a idler sprocket... so much vibration when acceleration the chain just spits itself off

Thanks to who?

 

[kibble]

With the help of Tyler resolved low idle and air leak issue.

:arf:

 

[Kaptain Krunch]

looks like the brass top can be screwed off with a wrench, then use a funnel? hard to get there with the handlebars

Thats why i said how would you fill it easily, just looks like a pain to me.

 

[EagleTalons]

Siphon wouldn't be that bad to fill it with.

 

[mike75925]

oscar, you running liquid gasoline, or compressed gas? nice job, no doubt. ok i think i know what's up. you're using exhaust pressure to charge the tank and force the fuel to the carb. some of that r/c ingenuity hunh?

 

[Doc Sprocket]

Innnnnnnnteresting!!! I didn't notice the second line at first glance. Is it working well? Does it work well enough for a fuel tank mounted BELOW the carb?

Re: Vibe's... Bent sprocket? Harleys vibe like nobody's business, and they don't throw chains...?

 

[jr dragster T]

Re: Vibe's... Bent sprocket? Harleys vibe like nobody's business, and they don't throw chains...?

Its more of the clutch used on these 49 cc engines is very jittery when taking off and has a tendency to throw long 25 pitch chains.

 

[jr dragster T]

:arf:

Whats the difference lol?

 

[oscaryu1]

Fine ya hatorz, well I actually got it to stay on. I aligned the chain better, and it lasted great! Until I turned a slightly sharp turn.

Then she fell off, but I need some washers/spacers to make it work out some better.

It did gain a heckload of speed though, clutch is VERY weak. And very little torque. I'm thinking of swapping for that three shoe clutch now, two shoes can't haul my 145lbs.